i don't think that's true. They don't allow you to make an incompatible fork and a compatible fork, but as long as your fork is capable of running Play Service

i don't think that's true. They don't allow you to make an incompatible fork and a compatible fork, but as long as your fork is capable of running Play Services, you can distribute a version without it. You just get into trouble if you do like Amazon did and try to block the installation of Google Play Services.